Steel Technological

zinc & iron-zinc alloy coatings - Forming Quality Tensile Quality

New Amendments of EN Specification on Hot Dipped Galvanized Steel Sheet
      1. EN10142(1991) ; zinc & iron-zinc alloy coatings - Forming Quality
Amendments Old Specification Quality
DX51D+Z, DX51D+ZF FeP02G      Bending & Profiling Quality
DX52D+Z, DX52D+ZF FeP03G      Drawing Quality
DX53D+Z, DX53D+ZF FeP04G      Deep Drawing Quality
DX54D+Z, DX54D+ZF FeP05G      Extra Deep Drawing Quality
      2. EN10147(1992) ; zinc & iron - zinc alloy coating - Tensile Quality
Amendments Old Specification Quality
S220GD+Z / S220GD+ZF FeE220G      Structural Quality Grade - A
S250GD+Z / S220GD+ZF FeE250G      Structural Quality Grade - B
S280GD+Z / S220GD+ZF FeE280G      Structural Quality Grade - C
S320GD+Z / S220GD+ZF FeE320G      Structural Quality Grade - D
S350GD+Z / S220GD+ZF FeE350G
S550GD+Z FeE450G      Structural Quality Grade - E
 The Number incorporated in the grade specification of each EN10147(1992) - tensile quality - relates to the minimum
     YIELD STRENGTH of the material.
Remarks
                - In case of ASTM specification, the specification of Hot Dipped Galvanized Steel Sheet was unified as ASTM A653.
                  However, the former specifications likely to ASTM A526, A527, A528, A642 & A446 are also used and available.
                - Bending Quality of EN specification is called as LOCKFORMING QUALITY in JIS or ASTM specification.
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